I have been noticing a deep gurgling and slow rev coming from the engine whenever i depress the throttle all the way down. Sometimes when it does this it will suddenly bog down. it doesn't always rev like that but only every now and then. I dont know yet if its the compression but i will have it checked soon. It starts very well, it doesn't smoke, and the idle is fine but its a little rough sometimes. One thing that it does do is that when i rev it to 6.5 rpm with it in neutral it will have one heavy misfire. dont know why but i would sure like to. Injectors maybe? there's no CEL either.

 

clean maf and ess sensor. check intake tube for oil residue/puddled. depending on year and mileage compression check wouldnt hurt.. oil catch can wouldnt hurt either but be careful cause they arent warranty friendly..

 

I no longer have a warranty. Ive cleaned them not too long ago but ill do it again. how do i install the oil can? ive also been meaning to clean the ssv because i can hear a knocking noise coming from that area. i think it may be gunked up.